Radial flows and angular momentum conservation in Galactic chemical evolution

  title={Radial flows and angular momentum conservation in Galactic chemical evolution},
  author={Thomas Bilitewski and Ralph Schonrich},
  journal={Monthly Notices of the Royal Astronomical Society},
We study the effects of radial flows on Galactic chemical evolution. A simple analytic scheme is developed prescribing the coupling of infall from the intergalactic medium and radial flows within the disc based on angular momentum conservation. We show that model parameters are tightly constrained by the observed [Fe/H]-abundance gradient in the Galactic disc. By this comparison the average rotational velocity of the onfalling material can be constrained to 0.7 ≤ v/Vc ≤ 0.75, or respectively… Expand
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